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1534 Willow Pass Road. Pittsburg, CA 94565-1701 <br />MCC <br />ampbell Analytical, Inc. <br />± ? Web: www.mccampbell.com E-mail: main@?rnccampbell.com <br />"Whea011alitvCounts" Telephone: 877-252-9262 Fax: 925-252-9269 <br />QC SUMMARY REPORT FOR 6020A <br />W.O. Sample Matrix: Soil QC Matrix: Soil WorkOrder: 0901060 <br />EPA Method 6020A <br />Extraction SW3050B <br />BatchlD: 40647 <br />Spiked Sample ID 0901060-007A <br />Analyte Sample <br />mg/Kg <br />Spiked <br />mg/Kg <br />MS <br />% Rec. <br />MSD MS -MSD <br />% Rec. % RPC <br />Spiked <br />LCS <br />LCSD LCS-LCSD <br />Acceptance Criteria (%) <br />mg/Kg <br />% Rec. % Rec. % RPD <br />MS / MSD RPD LCS/LCSD RPD <br />Nickel 12 <br />50 <br />105 <br />97.5 6.04 <br />10 <br />99.8 <br />102 1.80 <br />1 <br />70 - 130 20 80 - 120 20 <br />'%ss: 107 <br />250 <br />107 <br />102 4.76 <br />250 <br />103 <br />108 4.16 <br />70 - 130 20 70 - 130 20 <br />All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions. <br />NONE <br />BATCH 40647 SUMMARY <br />Lab ID Date Sampled Date Extracted Date Analyzed Lab ID Date Sampled Date Extracted Date Analyzed <br />0901060-005A )1/06/09 10:56 AM 01/06/09 )1/08/09 12:00 PM I 0901060-006A )1/06/09 11:07 AM 01/06/09 01/07/09 8:53 PM <br />0901060-007A )1/06/09 11.12 AM 01/06/09 01/07/09 3:27 PM <br />MS = Matrix Spike; MSD = Matrix Spike Duplicate: LCS = Laboratory Control Sample: LCSD = Laboratory Control Sample Duplicate: RPD = Relative Percent Deviation. <br />% Recovery = 100 ' (MS -Sample) / (Amount Spiked), RPD = 100 ' (MS - MSD) / ((MS + MSD) / 2). <br />MS / MSD spike recoveries and / or %RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons: a) the sample is inhomogenous <br />AND contains significant concentrations of analyte relative to the amount spiked, or b) the spiked sample's matrix interferes with the spike recovery. <br />N/A = not applicable to this method. <br />NR = matrix interference and/or analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due <br />to high matrix or analyte content. <br />DHS CLAP Certification 1644 U QA/QC Officer <br />